Machine for the manufacture of sheets, boards, or tubes from pulp.



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MACHINE FUR THE MANUFACTURVE OFSHEETSyBOARDS, 0R TUBES FROM P ULP.

(Application med Juno 2e` 1901.

(N0 Mdem- WITNESS No. 692,862. ,l rammed-Feb; 19:02. F. E. KEY|:s. Y 1 MAGHINE FOR THE MANUFMJ'IYUBE'l 0F.SHEETS B01-WD5, 0R TUBES FROM PULP.

(Application med 'June 2e, 1901.)

L No Model.)

5 Sheets-Sheet 2,

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Paiented Feb. u,

F. E. KEYES. MACHINE FOR THE MANUF'AIITURE 0F SHEETS, BOARDS, 0R TUBES FROM PULP.

(Application filed Juno 26, 1901.)

5 SheeS-Sheet 3.

Y(No Model.)

IN VEN TOR wWIT ESSES ma mams Parana ou., wncrywumo.. vasulncvou. o. c.

I No. 692,862.

'Paten'ted Feb. F. E. KEYES. MACHINE FOR THE MANUFACTURE: 0F SHEETS, BOARDS, 0R TUBES FROM PULP.

(Application med Juno 2s. i901.; 4

ssheetsfshet 4.

(Nvu Model.)

vl/ TR Aomey MWW'TNESSES YH: wams PETER: Mmmm. v/Axumufon, D. c.

No. 692,862. Patented Feb. 11;*19022.'

F. E. KEYES. MACHINE FOR THE MANUFACTURE 0F SHEETS, BOARDS, 0R TUBES FRUM PULP.

`(Appucnumm meg June 26, 1901. (No Model.) y 5 Sheets--Shet 5.

Alwrmy TH: Nonms Prrzns co. PHOTQLTNQ.. WASHINGTON, D. c.

UNTTED STATES FRANK EUGENE KEYES, E

PATENT OFFICE.

noLYoKE, MASSACHUSETTS.

MACHINE FOR THE MANUFACTURE OF SHEETS, BOARDS, OR TUBES FRUM PULP.

SPECIFICATION forming' part of Letters Patent No. 692,862, dated February 1 1, 1 902.

i Application filed June 26, 1901. Serial No. 66,120. (No model.)

` machines for the manufacture of sheets,

boards, or tubes from pulp, and has special reference to the machines in each of which there is employed a perforated or reticulated mold or pulp-cylinder divided internally into radial compartments and revolving in a vat containing the pulp,l the said cylinder being so constructed and arranged that a layer of the pulp is caused to adhere to the periphery of the cylinder as the latter revolves and the superfluous moisture removed from the said layer of pulp by maintaining the radial compartments of the mold or pump-cylinder as they leave the pulp-vat and approach the couch in a vacuous condition, thus extracting the moisture from the fiber before the latter leaves the mold or pulproll. The layer of pulp so `formed on the mold or cylinder is removed therefrom by the couch-roller and Wound cont-inuously upon another or Winding roller until the required thickness has been obtained, after which the windingroller is removed and the material that has been Wound thereon is, if required inthe form of a sheet, subsequently severed With a suitable tool and detached `from the roller, after which it is opened out into flat form. Machines of this kind as at present constructed are open to several objections. For instance, winding -rollers of comparatively small diameter are necessarily employed, andit is absolutely necessary to remove them from the machine in order to remove the adhering material. Again, the compartments inthe 'pulp mold or cylinder are so con- I structed that they discharge the water against the pulp adhering to the periphery of the pulp-mold after the level of the pulp has been passed, thus operating to dislodge portions of the adhering pulp.

l The object of my invention is to so construct the parts as to permit of the employment of winding-rolls of various sizes andl with deviceswhereby the adhering sheet or board may be removed from the machine Without removing the winding-roll.

A further object is to provide means whereby the water taken into the compartments of the pulp roll or cylinder will be discharged therefrom without coming in contact with the adhering mass or film of pulp.

A further object is to provide improved means for holding the windingroll, or the layer of pulp thereon with a yielding pressure against the couch-roller.

With these ends in viewmyinvention consists in the parts andcombination of parts and in the detailsof construction, as will be claims.

In the accompanying drawings, Figure lis a view in end elevation, partly in section, of my improved apparatus. Fig. 2 is a front view, partlyin section, of same. Fig. 3 is a plan view. Fig. 4t is a view in transverse section through the cylinder. Fig. 5 isa longitudinal sectional view of same. Fig. 6 isa plan View, partly in section, of the tub or vat, showing the shaft-bearings and air-pipes, tlues, and dampers. Fig. 7 is a View in section ont-he line sox of Fig. 6. Fig. 8 is'a View in section on the line y y of Fig. 6. Fig. 9 is a View in elevation looking toward the mold or cylinder, showingv the air or .exhaust box in position. Fig. IOis an enlarged detail View box 33 and their relation to cooperating parts. Fig. 1l is an end view of one of the suctionboxes. Fig. 12 is a plan view of the suctionbox.

l represents a pair of standards or uprights formed with suitable Vertical guideways' 2, in which the bearings 3 of the winding-roller'wll are adapted to be raised or lowered to accommodate rollers of various sizes.V In Fig.'1 I

ers 4. of different diameters, with the bearings -3 adjusted for the larger roller. The bearings opening or bore for the passage ofa screw 5,

in the uprights or standards 1. Each screw which latter is mounted in suitable bearings more fully described, and pointed out in the in section, showing the pipe 36 and suctionhave shown in dotted lignes two Winding-roll- IOO 3 are each provided wi-t-h a screw-threaded' 5 is provided on its upper end, above its upright or standard 1, with a pinion 6, which latter is engaged by the pinion 7 on the slightly-inclined shaft 8, journaled in bearings on the rear side of the apparatus. Each shaft Sis provided on its lower end with a bevel-pinion 9, which meshes with a bevelpinion 10 on the horizontal shaft 11. This shaft l1 extends lengthwise the apparatus and carries both bevel-pinions 10 and a belt or gear-wheel 12, by which the shaft is driven. The power applied to pulley 12 on shaft 1l can be controlled by a treadle or hand-lever orany other suitable device, and when the shaft is in motion it will be seen that both screws 5 will rotate and either elevate or lower the bearings 3, carrying the trunnions 14 of the winding-roll 4. Hence after the proper thickness of liber has been deposited on the winding-roll the latter can be elevated above the couch-roller and the sheet or board severed and unwound and deposited on a sliding table, which is introduced between the winding-roll and the couch-roll. This table does not form any part of this invention. Hence it is not shown. After the sheet or board has been removed from the Winding-roll the table carrying the sheet or board is withdrawn, and by reversing the direction of motion of the screws 5 the winding-roll can be lowered onto the couch-roll in a position to take the adhering film of fiber therefrom.

The bearings 3 are each provided with an open slot 15, in which the trunnions 14 of the winding-roll rest and in which they move. The winding-roll rests with a yielding pressure on the couch-roll. Hence as the iberis deposited on the winding-roll the latter is gradually elevated until the desired thickness of board has been obtained. The pressure on the windingroll is regulated by the levers 1G, which latter are pivoted at 17 to the arms 18. The arms 18 are integral with their respective bearings 3, and each lever 16 bears on a trunnion 14C of the winding-roll 4C. The longer members of the arms 1G carry at their free ends the pendent rods 19, on which removable weights may be placed for increasing the pressure, while the shorter members of the levers 16 are provided with the adjustable weights 20, which are designed to counterbalance the weight of the longer members, thus permitting the machine to operate without any pressure other than the weight of the winding-roll. The ber is delivered ,to the winding-roll from the couch-roll 2l, the latter being mounted in the frame with its periphery in contact with the periphery of the pulp mold or cylinder. This couch-roll 2l is hollow, with a perforated or reticulated periphery, and is connected to the drive-shaft 22 by a coupling interposed at the point 23, so as to permit the roll to be removed and recovered or repaired, as necessity demands. The shaft 22 is provided with a pulley or gear through which motion is transmitted to the couch-roll, and the latter is provided with the toothed gear which transmits motion to the pulp-mold 25. This mold or cylinder 25 is provided centrally with a hollow core 26, which is of double conical shape in longitudinal section-that is to say, is in the shape of two hollow cones placed base to base-the portion outside of said central conical section being divided into compartments 27 by a series of radial partitions 28, which terminate in contact with the inner face of the perforated or reticulated periphery 0f the mold. The central part of the internal double cone is provided with a peripheral rib 29 for supporting the reticulated circumferential covering of the mold or cylinder 25, the rib having openings therein for the free passage of air from one end of the cylinder to the other.

Heretofore in this class of machines the radial partitions of the pulp mold or cylinder 25 have been straight and dat, with the result that as the partitions are carried up the Water within the compartments formed by the partitions is discharged against the adhering film of ber, thus washing more or less of the fiber off the periphery of the cylinder. One of the objects of myinvention is, as before stated, to prevent this washing off-of the film by constructing the outer edges of the partitions 28 in scoop or bucket form, as shown at 30, so that they will retain all the water therein at the time the extreme outer edges of the partitions reach the water or pulp level in the vat 3l. The water thus carried up by the partitions, instead of falling against the outer perforated cover of the mold or cylinder 25 and washing the adhering pulp-film therefrom, flows inwardlyas the partitions ascend and onto the double cones and escapes at the ends of the mold or cylinder. The vat is provided with a supply-pipe for the pulp and with an overflow-pipe for the escape of the surplus pulp. In the machines as now constructed the overtiow must extend well up `into the tank and to a point about where the water would leave the compartments 27 if unobstructed by the lm, so as to prevent as far as possible the Water retained by the hn from Washing the latter O. With my scoop form of partitions I lower considerably the point where the water leaves the compartments, and hence am enabled to lower` to a considerable extent the height of the overtiow-pipe 32, and consequently the pulp-level in the vat, and increase the area or surface of the mold or cylinder exposed to the suction, and thus more thoroughly dry the lm of pulp before it reaches the couch-roll. The overliow-pipe 82 maintains the pulp in the vat at a uniform level, and, if desired, the said pipe may be screwed into its seat, so as to render it adjustable with respect to its height, so that the level at which the overliow occurs may be varied.

The pulp mold or cylinder 25 is open at its two ends, and the latter are overlapped by flexible bands or rings 45, which latter are carried by the ends of the vat and are de- IOO IIO

IZO

l the ends of the vat andare mounted on mov-4 signed to seal the joint between the ends of the vat and therevolving moldy or ,cylinder and prevent the ingress of pulp or air into the compartments of the mold or cylinder.

Located at the two ends and within the -vatv are the ,air or suction boxes.. 33. These airboXes are located, against the inner faces of able supports, with their inner open ends terminating in close proximity to the ends of the partitions 28, and are of such'shape that as the mold or cylinder 25 revolves the boxes cover or take in the open ends of the compartments between the level of the pulp and the couch-roll. nected by aV pipe 36 with a vertical flue 37, and the lues 37 lead tola suction-fan (not Y shown) which operates tovmaintain a partial permitted to remain in the chamber 40, andvacuum or constant suction within the moldor cylinder, and thus not only causes the fiber to adhere thereto, but extracts the water from the pulp. In the drawings I have also shown the couchro ller open at its ends, the latterA being in communication with the suctionlues38,also leading to the suction-fan, the iiues 37 and 38 being each provided with a damper'by vwhich the suction-or exhaust can be regulated and controlled.

yA portion of each end ofthe vat below theA air or suction boxes opensl into the chambers 40, into which the water iiows`asit leaves-the mold or cylinder, and a valve 39 is located ywithin each chamber 40 for regulating the discharge or escape of the water from the chamber. When itis'desired to cause lthe pulp to adhere in a very thin-sheet or iilm to the surface of the mold or cylinder, waterv is as the latter is open to the compartments-27 ofthe moldor cylinder 25 it will be seen that the waterl'lows freelyinto the latter from the` chamber 40, and thus prevents `the suc! tion orpartial vacuum from exerting'its full force and effect upon the pulp-- Hence but a comparatively small quantityadheres to the surface of the cylinder. is desired to increase the thickness of the sheets orsiilms the valve 39 is opened and the water permitted to escapeas itfissues from the cylinder.-

'rheshafn of the puipmoid orceynndef is` carried in bearing-boxes 41,*integralwith the air-boxesor exhaust-chambers, and the boxes f 4l are pivotally supported in the yokes 42,-

These levers are l carried by the levers 43. pivoted to the vat or tub,'and each is provided with adj listing mechanism 44, by whichl j the mold or cylinder can be moved toward or away from the couch-roll.

haust chambers orboxes are carried -on the shaft ofthe mold or cylinder, it follows that when the lat-ter is moved-or adjusted the airl boxes or chambers move therewith. The pulp mold or cylinder receives'its motion from the couch-roll through the pinions 24 and` 44, the depth of the teeth of saidpinions be-` ing such that these partswill not become dis- Theseboxes are each con-v When, however, it l As the air or eX-A engaged by any variation in the position of the mold or cylinder relativelyto the couchroller.

It is evident many slight changesmight'beresorted to in the relative arrangementofparts. herein ,shown and described without departing from the spirit and scope of my inl.`

Hence I would have it understood vthatI do -not wish `to continemyself to the vention.

exact arrangement of parts herein shown and described; but,

Having fully described my invention, what I claim as new, and desire to secure byLetters Patent, is Y l.` In a machine for making pulp-board, the

combination with a vat,'of la'pulp mold or cylinder disposed'over and'adapted to'pass through pulp therein, said mold orcylinder -comprising a series of scoop-'shaped radial* partitions andan open-work coverA 2.- In a machine for making pulp-board, the

combination withl a vat, ot'a *pulp ,mold or cylinder having adouble cone centrally there in, partitionsra'diating from said cone, a-re-y ticulated cover and a perforated rib project ing from the center of' said'double cone and supporting the central portion of said reticuKY x lated cover.

3,1In a machine for making pulp-board, thecombination with-a vat, of-a' pulp mold or cylinder, a double cone centrally-withinsaid cylinder,partitiogns having scoopshapedouter endsradiating from said cones,` and aret-iculatedcover. A i

4. In a machine for making pulp-board, the combination with a vat,a pulp mold or cylinder therein, and a couch-'rollfor-taking-the* pulp from the mold or cylinder of uprightsor standards projecting above-the couch-roll, "a winding-roll between-said uprights'or standards, vertically-movable bearings in said standards 'upon which the fjournalsfof 'the 1 winding-roll are mountedmea'ns lfor mov-ingel l'IO the bearings andwinding-roll .upY and down'.

5. In a machine for makin-g pulp-board, the combination with a vat, a' pulp moldv or cylindertherein and a couch-roll 'for takin-g the pulp fromthe 4mold or cylinder,of an-uprightl 'LUS at each end of the machine; a Winding-roll a- Y screw carried by each upright, a 'bearing in? each upright inwhich therespectiveejournals i ofthe winding-roll are mounted, said bearings engaging the screw and'means for rotating theV screws ingunison.

6. I-n a machine for makingpulp-boa'rd, the' combination with a vat, apulpmold or cylinder therein, anda couchroll,`of anupright at* each end of the machine,=a bearingcarrid'by' each upright', a winding-rollhaving trunnionsmounted upon said bearings so as tolo'emov'-,

able up and `down therewith, and a weighted? lever 'bearing on each trunnion;

7. Ina machine' for making pulp-board,the combination with a vat, apulp mold or 'cylinlL der therein, and a couch-roll, of an upright at each end of the machine, a bearingl carried by j' s each upright, means for adjusting said bear# ings vertically, a Winding-roll having trunnions mounted upon said bearings so as to move up and down therewith, and a Weighted lever pivoted to each movable bearing and adapted to bear on the trunnions of the winding-roll.

8. Ina machine for making pulp-board, the

combination with a Vat,and suction-fines leading from both ends thereof of a cylinder located Within the vat, and divided into compartments by a series of radial partitions, and air or suction boxes interposed between the cylinder and the open ends of the air-fines for conducting the exhaust-air from the cylinder to the fines.

9. In a machine for making pulp-board, the combination with a vat and suction-'lines leading from both ends thereof, of a shaft Within the vat, a cylinder on said shaft, air or suc; tion boxes carried by suitable supports and forming bearings for the shaft, substantially as set forth.

lO. In a machine for making pulp-board, the combination with a vat and a Verticallyadjnstable oVeriioW-pipe therein, of a pulp mold or cylinder Within said vat, a couehroll, a winding-roll, and means at both ends of the cylinder for exhausting the air therefrom.

In testimony whereof I have signed this specication in the presence of two snbscrib- 3o ing Witnesses.

FRANK 'EUGENE KEYES.

lVitnesses:

G. F. 1)OWNING, A. W. BRIGHT. 

